Improvement in miners  lamps



J. J. WEINEL.

MINERS LAMPS.

N .188.,705, Patented March 20,1877.

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UNITED STATES JOSIAH J. WEINEL, OF ALLEGHENY TOWNSHIP, WESTMORELAND COUNTY,

PENNSYLVANIA.

IMPROVEMENT IN MINERS LAMPS.

Specification forming part of Letters Patent No. 188,705, dated March 20, 1877 application filed July 526, 1876.

To all whom it may concern Be it known that I, JOSIAH J. WEINEL, of Allegheny township, Westmoreland county, Pennsylvania, have invented a new and useful Improvement in Miners Lamps, which improvement is fully set forth in the following specification, reference being had to the accompanying drawing.

Similar letters of reference indicate corresponding parts.

A free current of air is conveyed to the burner of the lamp through the perforation 61, and a surfeit of oil through attraction to the burner is prevented from loss by its return to the oil-chamber of the lamp through perforations d and E.

In the drawings, Figure 1 shows a side view of a miners lamp; Fig. 2, a transverse longitudinal section of the same, and Fig. 3 a view of my burner.

Ais the body of a common miners lamp; B, lamp-lid; b, fastening for lamp-lid; O, a lamp-spout; 0 an opening into the spout C from the oil-chamber. c is an air-chamber around the spout O. c is the screw-thread of the spout O for fastening the burner D. d is the screw part of the burner D. d are perforations in the burner D. E is the airaperture at base of the spout O. a. is an indentation for admission of the fastening b.

To the ordinary miners lamp, within the spout G, I use a tube extending from thebottom of the spout to a point near the upper end of the same. At the lower end of this spout I make a perforation, E, through which air can pass up along the external surface of the tube 0 and inner surface of the spout G, and then out through the perforations d, and into the main wick-tube 0 thus supplying the burner D with air. It will be seen that the air has thus unobstructed passage from the oil-chamber to the burner D.

The burner D has the screw-thread d for securing a close fastening of the burner D into the spout 0 ate. This burner D, when thus screwed into the spout 0, passes down on the exterior side of the tube 0 fitting closely thereon, and thus forms a perfect tube from the bottom of the spout 0 up through the same to the top at d.

The burner D has the perforations d, and when it (the burner) is screwed down into the spout G, the perforations are above the tube 0 so that air in passing up the chamber on the outside of the tube, being chamber 0 may pass out of chamber 0 into the tube 0 and to the burner D.

It will be seen that in case of a flow of oil up the tube 0 and its return impeded by a close fitting of the wick in the tube, that a return of the surplus oil may be effected out through the perforations cl into the chamber 0 and from thence down to the aperture E into the air-chamber, thereby saving a quantity of oil which would otherwise be lost.

In the construction of my lamp I use ordinary materials.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. In a miners lamp, the burner D, having the thread d for securing the same in the spout G at c, and the perforations d for supplying air to the burner, substantially as described aud shown.

2. The chamber 0 formed by the walls of the spout G, and tube 0 as an air-chamber, in combination with the perforations E and d and the burner D, substantially as described and shown.

3. In a miners lamp, the combination of the burner D, perforations d. and E, tube 0 with the lamp-spout O, substantially as described and shown.

In witness whereof I have hereunto set my hand at Leechburg, Pennsylvania.

JOSIAH JAMES WEINEL.

Witnesses:

EDWIN B. FAIR, W. R. DUFF. 

